





Why Serious Mass™?
With two heaping scoops, you get ...
Optimum Nutrition® has been trusted to provide the highest quality in post-workout recovery, pre-workout energy and on-the-go sports nutrition for over 30 years and in 90+ countries. After careful supplier selection, each ingredient is tested to assure exceptional purity, potency and composition. We hold ourselves to the highest production standards, all so you can unlock your body's full potential.
Serious Mass™ is designed to provide serious calories, protein and carbohydrates - making this a convenient way to get extra calories throughout your day.
*see nutrition information for sat fat, cholesterol and sodium content
‡When taken over time addition to normal calorie intake and regular weight resistance training.
Suggested useTips: New users may find it beneficial to begin with 1/2 of a serving daily for the first week and then gradually increase to 1 serving a day.
For best results, consume 2 scoop serving regularly over time in combination with regular resistance exercise.
Maltodextrin, whey protein concentrate, natural and artificial flavor, sunflower and/or soy lecithin, acesulfame potassium, sucralose.
Contains: milk and soy.
This poruct contains ingredients of international and U.S. origin.
WarningsContents sold by weight not volume. Some settling will occur.
Store in a cool, dry place.
Serving scoop included. But may settle to the bottom during shipping.
Consult your physician before using this product if you are taking any medications or are under a physician's care for a medical condition. Not for use by those under the age of 18 or women who are pregnant, trying to get pregnant, or are nursing.
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